Use calculator to perform basic arithmetic operations.
The calculator module provides the following functions:
Adds two numbers.
function add(a: number, b: number): numbera: The first number.b: The second number.
The sum of a and b.
Subtracts the second number from the first number.
function subtract(a: number, b: number): numbera: The first number.b: The second number.
The difference between a and b.
Multiplies two numbers.
function multiply(a: number, b: number): numbera: The first number.b: The second number.
The product of a and b.
Divides the first number by the second number.
function divide(a: number, b: number): numbera: The first number.b: The second number.
The quotient of a divided by b.
Errorifbis 0 (division by zero is not allowed).
Squares a number.
function square(x: number): numberx: The number to be squared.
The square of x.
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